Log-spur attachment for conveyer-chains.



PATENTED MAR. 12, 1907.}

I H. s. HANCOCK. LOGISPUR ATTAGHMENT'POR GONVEYBR CHAINS.

APPLICATION FILED AUG. 31, 1906.

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UNITED STATES PATENT OFFICE.

HARRISON S. HANCOCK, OF NEWBERN, NORTH CAROLINA. I LOG-SPUR ATTACHMENTFOR CONVEY EFI-CHAINS.

Patented March 12, 1907.

Application filed August 31, 1906. Serial No. 332,838.

To all; Lil/tout Lt may concern:

Be it known that I, HARRISON S. HANCOCK, a citizen of the U 'ted States,residing at N ewbern, in the county of Craven and State of NorthCarolina, have invented certain new and useful Improvements in Log-SpurAttachments for Uonveyer-Chains, of which the following is aspecification.

This invention relates to the class of chain conveyors known as bull orjack chains, and pertains especially to a log-spur attachment for suchchains.

The object of the invention is to provide novel and peculiar means forclamping log spurs or teeth to chains for conveying logs.

A further object of the invention is to provide a plate having spurs orteeth and adapted to be inserted through a chain-link without splittingor separating the link and without separating the spurs from the plate.

A still further object of the invention is to provide a specialspur-plate adapted to be passed through a chain-link and a threepiiitconnection for clamping the plate in the li I With these and variousother objects, advantages, and improved results in view the inventionconsists in a plate having spurs insertible with the plate through achain-link and a three-part clamping device, each part having linkcavities or bearings therein.

In the accompanying drawings, forming part of this application, Figure 1is. a perspective view showing the application of the in vention. Fig. 2is a side view with one of the end clamps removed. Fig. 3 is a to Viewshowing the end clamps in position to he slid against the chain-links.Fig. 4 is a central longitudinal section of the assembled parts clampedto a chain. Fig. 5 is a detail per spective view of one of the endclamps.

The same reference-numerals denote the same parts throughout the severalviews of the drawings.

While the invention is applicable to chains composed of links of variousshapes or forms, it is for purposes of illustration shown in connectionwith a chain composed of round inseparable links 1, to any one of which.the device is attachable.

The plate 2 has at each end a log spur or tooth 3, and said plate hasside shoulders 4, and said ends are curved to enable either spur to bepassed through the link 1 or the latter over the spurs and around theplate 2. The three-part clamping device comprises a clamping-cap 5,having a chain-groove 6 and a projection 7. The ends of the cap arecurved to fit the curvature of the plate ends, and the cap has sideshoulders 8, flush with the shoulders 4 when the cap is seated on theplate 2. The other two-clampin parts 9 (wlnch are termed end clamps)being alike, only one will be here described in detail. It is U-shapedin cross-section and has overhanging side flanges 10 to engage theshoulders 4 and 8 in its sliding movement on the plate 2 and the cap 5.The inner edges of the sides 11 of this part have link-grooves 12 and13, a link-cavity 14 extending from the grooves 13'into the outer faceof the sides 11, and a link-groove 15 is formed in the inner edge of thebase 16. The cap 5, the plate 2, and the end clamps are provided withholes for a pair of suitable bolts 17.

In assembling the parts on a link one of the spurs is inserted throughthe link with the latter around the center of the plate, the cap isplaced with its groove on one length of the link, the end clamps arethen slid into position, and the bolts hold the several parts clampedrigidly to the link.

It is obvious that the device may be attached to various parts of achain, as desired or as occasion may require, that the parts are capableof expeditious adjustment in placing and removing the device, and thatthe clamping means fixes the device permanently (if desired) to thechain with the spurs always in operative position.

It will be understood that this invention is not limited or restrictedto size and material nor in its application to any particular chain orchain-link.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A clamp for attaching a spur-plate to a chain-link, comprising a caphaving a groove to fit the chain, end pieces slidable on the spur-plateand on the cap and having grooves and cavities fitting the links, andsuitable bolts for securing the clamping parts.

2. A spur device for conveyer-chains, comprising a plate having spursand insertible through a chain-link, a cap supported by the plate andfitting the link, and the clamping ends slidable on the cap and theplate and fitting the link and the links adjacent said link.

3. In an attachment for chain conveyers, the combination, with a platehaving spurs 5. The combination, with the spur-plate having shoulders,and the cap having shoul- 1 l ders flush with the plate-shoulders, ofthe clamps slidable on the cap and plate and havend clamps havingflanges slidable on all of ing faces coaoting on the link and on theadi, said shoulders, and suitable bolts extending jacent links. Ithrough the cap, plate and end clamps.

4. In an attachment for chain conveyers, the combination, with a platehaving spurs or i in the presence of two Witnesses.

teeth, and a cap fitting between the spurs and holding one of thelink-bars, oi the end HARRISON HANCOCK itnesses clamps slidahle on thecap and plate and having; coacting faces to hold the other bar l C. W.MUNGER, of the link and the ends of the adjacent links. W. T. BISHOP.

or teeth and adapted to be inserted with the i teeth through a link ofthe chain, and a cap fitting the plate and the link, of a pair of end Inwitness whereof I hereunto set my hand 20

